I think in such cases, action from those who pocketed the money for the new gear should speak louder than words. Why can't LAMM arrange delivery through his dealer of another pre to Gr-gin, and take back the "unsatisfactory" unit from the customer for some serious indepth testing, repair and outright replacement if need be?
I just cannot understand the behaviour and attitudes of manufacturers in such cases. What they have to lose through negative publicity needs to be carefully weighed in the decision of leaving the customer sob his heart out or regret his purchase ....
Remember there have been reputable audio manufacturers driven out of business through their own inability or unwillingness to support customers in difficult times as these...
Why should the onus always be on the customer? Why can't the manufacturer or his appointed dealer make a commercial gesture and at the same time create a goodwill... What will this cost to the manufacturer?
After this ongoing saga of unresolved issue one thing is certain, no LAMM product will ever enter my audio room..... that's it.